1
|
Hashemikamangar SS, Vahedi M, Khadivi Moghadam M, Behniafar B, Chiniforush N. Evaluation of the cumulative effect of photodynamic therapy and local fluoride on the microhardness and topography of demineralized enamel and cementum surfaces. Heliyon 2024; 10:e35224. [PMID: 39161806 PMCID: PMC11332834 DOI: 10.1016/j.heliyon.2024.e35224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 07/16/2024] [Accepted: 07/24/2024] [Indexed: 08/21/2024] Open
Abstract
Background The present study aimed to determine the cumulative effect of two photodynamic therapy methods with methylene blue and indocyanine green and two topical fluoride therapy methods with fluoride varnish and silver diamine fluoride alone and in combination on the microhardness and topography of demineralized enamel and cementum surfaces. Materials and methods Seventy-two sound human teeth were selected, and their buccal and lingual surfaces were assigned to two main groups of enamel and cementum using simple randomization. The initial surface hardness (SH) of the enamel and cementum in each sample was determined using a micro-Vickers hardness tester using a 200-g force in 10 s. Then artificial caries was induced by immersion in a demineralizing/remineralizing solution (i.e., each tooth provided two samples, one on the buccal aspect and the other on the lingual aspect). Each enamel/cementum main group was divided into two subgroups using simple randomization based on the local fluoride type (fluoride varnish and silver diamine fluoride) and the type of the photosensitizer agent (methylene blue and indocyanine green). Finally, 16 groups were achieved (n = 9). The final surface hardness of the enamel and cementum samples was determined as described above. Finally, the sample surfaces were prepared for the surface topography evaluation under a scanning electron microscope. The baseline microhardness was compared between the 16 study groups in the first step using one-way ANOVA. Then, three-way ANOVA was used to evaluate the effect of fluoride, laser, and surface (enamel and cementum) on microhardness. Results All the groups exhibited decreased microhardness due to the induction of artificial caries. In both main groups of enamel and cementum, the lowest decrease in microhardness was recorded with combined photodynamic therapy and methylene blue photosensitizer material and fluoride varnish (15.1 % for cementum and 16.7 % for enamel), and the highest decrease in microhardness was recorded in the methylene blue group (35.7 % for cementum and 34.9 % for enamel). Conclusion The combination of photodynamic therapy with the photosensitizer substance methylene blue or indocyanine green together with fluoride varnish or silver diamine fluoride is effective on the remineralization of demineralized enamel and cementum. Although there is no difference between the combination of photodynamic therapy with fluoride varnish compared to fluoride varnish alone, both of these treatments are more effective than using photodynamic therapy alone.
Collapse
Affiliation(s)
- Sedighe Sadat Hashemikamangar
- Professor, Dental Research Center, Dentistry Research Institute, Department of Restorative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahtab Vahedi
- Dental Student, Department of Restorative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammadreza Khadivi Moghadam
- Dental Student, Department of Restorative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Behnaz Behniafar
- Assistant Professor, Department of Restorative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
| | - Nasim Chiniforush
- Laser Research Center of Dentistry, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
2
|
Alanazi AM, Khan AA, Siddiqui YTS, Leemani MJ, Shabbir T, Ali S. Photoactivated rose bengal-doped TiO 2 nanoparticles modified fifth-generation adhesive on the survival rate of Streptococcus mutants and mechanical properties of tooth-colored restorative material to carious dentin. Microsc Res Tech 2024. [PMID: 39056241 DOI: 10.1002/jemt.24658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/20/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024]
Abstract
Assessment of the antimicrobial, micro tensile bond strength (μTBS), and degree of conversion (DC) of fifth-generation adhesive modified using photoactivated 0.5% rose bengal (RB) and photoactivated RB-doped titanium dioxide nanoparticles (TiO2NPs) in different concentrations (2% and 5%) as compared with the unmodified adhesive bonded to the carious affected dentin (CAD). Forty mandibular molars with caries progression up to the middle third of the dentin, as per the International Caries Detection and Assessment System (ICDAS) score of 4 and 5 were included. Specimens were divided into four groups based on etch and rinse adhesive (ERA) modification group 1: unmodified ERA, group 2: photoactivated 0.5% RB photosensitizer (PS) modified ERA, group 3: photoactivated RB-doped 2 wt% TiO2NPs adhesive, group 4: photoactivated RB-doped 5 wt% TiO2NPs adhesive. Followed by adhesive and composite restoration on the CAD surface. All the specimens were thermocycled and an assessment of μTBS and failure pattern analysis was performed. The antibacterial potency of RB and RB-doped TiO2NPs (2% and 5%) followed by their activation using visible light against Streptococcus mutans (S.mutans) were tested. The survival rate of S.mutans was assessed using the Kruskal-Wallis test. The analysis of μTBS involved the use of ANOVA, followed by a post-hoc Tukey honestly significant difference (HSD) multiple comparisons test. Group 1 (Unmodified ERA) (0.52 ± 0.31 CFU/mL) treated samples unveiled the highest means of bacterial survival and lowest μTBS (11.32 ± 0.63 MPa). Nevertheless, group 4: photoactivated RB-doped 5 wt% TiO2NPs adhesive displayed the lowest outcomes of S.mutans survival (0.11 ± 0.02 CFU/mL) and highest bond strength (18.76 ± 1.45 MPa). The photoactivated RB-doped 2 wt% TiO2NPs in adhesive demonstrated promising enhancements in both μTBS and antibacterial efficacy against S.mutans. However, it is noteworthy that this modification led to a decrease in the DC of the adhesive. RESEARCH HIGHLIGHTS: Unmodified ERA-treated samples unveiled the highest bacterial survival and the lowest μTBS. Photoactivated RB-doped 5 wt% TiO2NPs adhesive displayed the lowest S.mutans survival rate and highest bond strength. DC decreased with an increase in concentration of TiO2.
Collapse
Affiliation(s)
- Amer M Alanazi
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | | | | | - Tooba Shabbir
- Altamash Institute Dental Medicine, Karachi, Pakistan
| | - Sadia Ali
- Dow University of Health Sciences, Karachi, Pakistan
| |
Collapse
|
3
|
Cao B, Ma Y, Zhang J, Wang Y, Wen Y, Yun li, Wang R, Cao D, Zhang R. Oxygen self-sufficient nanodroplet composed of fluorinated polymer for high-efficiently PDT eradicating oral biofilm. Mater Today Bio 2024; 26:101091. [PMID: 38800565 PMCID: PMC11126933 DOI: 10.1016/j.mtbio.2024.101091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 05/12/2024] [Accepted: 05/14/2024] [Indexed: 05/29/2024] Open
Abstract
Oral biofilm is the leading cause of dental caries, which is difficult to completely eradicate because of the complicated biofilm structure. What's more, the hypoxia environment of biofilm and low water-solubility of conventional photosensitizers severely restrict the therapeutic effect of photodynamic therapy (PDT) for biofilm. Although conventional photosensitizers could be loaded in nanocarriers, it has reduced PDT effect because of aggregation-caused quenching (ACQ) phenomenon. In this study, we fabricated an oxygen self-sufficient nanodroplet (PFC/TPA@FNDs), which was composed of fluorinated-polymer (FP), perfluorocarbons (PFC) and an aggregation-induced emission (AIE) photosensitizer (Triphenylamine, TPA), to eradicate oral bacterial biofilm and whiten tooth. Fluorinated-polymer was synthesized by polymerizing (Dimethylamino)ethyl methacrylate, fluorinated monomer and 1-nonanol monomer. The nanodroplets could be protonated and behave strong positive charge under bacterial biofilm acid environment promoting nanodroplets deeply penetrating biofilm. More importantly, the nanodroplets had extremely high PFC and oxygen loading efficacy because of the hydrophobic affinity between fluorinated-polymer and PFC to relieve the hypoxia environment and enhance PDT effect. Additionally, compared with conventional ACQ photosensitizers loaded system, PFC/TPA@FNDs could behave superior PDT effect to ablate oral bacterial biofilm under light irradiation due to the unique AIE effect. In vivo caries animal model proved the nanodroplets could reduce dental caries area without damaging tooth structure. Ex vivo tooth whitening assay also confirmed the nanodroplets had similar tooth whitening ability compared with commercial tooth whitener H2O2, while did not disrupt the surface microstructure of tooth. This oxygen self-sufficient nanodroplet provides an alternative visual angle for oral biofilm eradication in biomedicine.
Collapse
Affiliation(s)
- Bing Cao
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yingfei Ma
- The Radiology Department of Shanxi Provincial People's Hospital, Five Hospital of Shanxi Medical University, Taiyuan, 030001, China
- College of Medical Imaging, Shanxi Medical University, Taiyuan, 030001, China
| | - Jian Zhang
- Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of Education, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Yanan Wang
- The Department of Physiology, School of Basic Medical Sciences, Shanxi Medical University, Taiyuan, 030001, China
| | - Yating Wen
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yun li
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ruixue Wang
- Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, 030032, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Donghai Cao
- College of Traditional Chinese Medicine and Food Engineering, Shanxi University of Chinese Medicine, Taiyuan, 030024, China
| | - Ruiping Zhang
- The Radiology Department of Shanxi Provincial People's Hospital, Five Hospital of Shanxi Medical University, Taiyuan, 030001, China
| |
Collapse
|
4
|
Zhang C, Zaki FR, Won J, Boppart SA. A multimodal nonlinear optical microscopy study of the responses of Pseudomonas aeruginosa to blue light and antibiotic treatment. JOURNAL OF BIOPHOTONICS 2024; 17:e202300384. [PMID: 38010357 PMCID: PMC10961202 DOI: 10.1002/jbio.202300384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Revised: 11/10/2023] [Accepted: 11/14/2023] [Indexed: 11/29/2023]
Abstract
Pseudomonas aeruginosa (P. aeruginosa) is a multidrug-resistant human pathogen involved in numerous infections. Understanding the response of P. aeruginosa to various treatments is critical to developing new ways for the antimicrobial susceptibly test and more effective treatment methods. Conventional antimicrobial susceptibility tests lack molecular information at the single bacterium level. In this study, we used label-free multimodal nonlinear optical microscopy to identify an autofluorescence signal from pyoverdine, a siderophore of the bacteria, for quantification of P. aeruginosa responses to antibiotics and blue light treatment. We also discovered that the bleaching of the pyoverdine autofluorescence signals is correlated with the inactivation of P. aeruginosa and is perhaps one of the mechanisms involved in the blue light inactivation of P. aeruginosa.
Collapse
Affiliation(s)
- Chi Zhang
- Beckman Institute for Advanced Science and Technology
| | | | - Jungeun Won
- Beckman Institute for Advanced Science and Technology
- Department of Bioengineering
| | - Stephen A. Boppart
- Beckman Institute for Advanced Science and Technology
- Department of Bioengineering
- Department of Electrical and Computer Engineering
- Cancer Center at Illinois
- Carle Illinois College of Medicine
- NIH/NIBIB Center for Label-free Imaging and Multiscale Biophotonics (CLIMB), University of Illinois Urbana-Champaign
| |
Collapse
|
5
|
Bourbour S, Darbandi A, Bostanghadiri N, Ghanavati R, Taheri B, Bahador A. Effects of Antimicrobial Photosensitizers of Photodynamic Therapy (PDT) to Treat Periodontitis. Curr Pharm Biotechnol 2024; 25:1209-1229. [PMID: 37475551 DOI: 10.2174/1389201024666230720104516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/07/2023] [Accepted: 06/20/2023] [Indexed: 07/22/2023]
Abstract
Antimicrobial photodynamic therapy or aPDT is an alternative therapeutic approach in which lasers and different photosensitizing agents are used to eradicate periodontopathic bacteria in periodontitis. Periodontitis is a localized infectious disease caused by periodontopathic bacteria and can destroy bones and tissues surrounding and supporting the teeth. The aPDT system has been shown by in vitro studies to have high bactericidal efficacy. It was demonstrated that aPDT has low local toxicity, can speed up dental therapy, and is cost-effective. Several photosensitizers (PSs) are available for each type of light source which did not induce any damage to the patient and are safe. In recent years, significant advances have been made in aPDT as a non-invasive treatment method, especially in treating infections and cancers. Besides, aPDT can be perfectly combined with other treatments. Hence, this survey focused on the effectiveness and mechanism of aPDT of periodontitis by using lasers and the most frequently used antimicrobial PSs such as methylene blue (MB), toluidine blue ortho (TBO), indocyanine green (ICG), malachite green (MG) (Triarylmethanes), erythrosine dyes (ERY) (Xanthenes dyes), rose bengal (RB) (Xanthenes dyes), eosin-Y (Xanthenes dyes), radachlorin group and curcumin. The aPDT with these PSs can reduce pathogenic bacterial loads in periodontitis. Therefore, it is clear that there is a bright future for using aPDT to fight microorganisms causing periodontitis.
Collapse
Affiliation(s)
- Samaneh Bourbour
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Atieh Darbandi
- Molecular Microbiology Research Center, Shahed University, Tehran, Iran
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Narjess Bostanghadiri
- Department of Microbiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Roya Ghanavati
- Department of Microbiology, Behbahan Faculty of Medical Sciences, Behbahan, Iran
| | - Behrouz Taheri
- Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Abbas Bahador
- Department of Microbiology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
6
|
Jao Y, Ding SJ, Chen CC. Antimicrobial photodynamic therapy for the treatment of oral infections: A systematic review. J Dent Sci 2023; 18:1453-1466. [PMID: 37799910 PMCID: PMC10548011 DOI: 10.1016/j.jds.2023.07.002] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 06/30/2023] [Indexed: 10/07/2023] Open
Abstract
Oral infection is a common clinical symptom. While antibiotics are widely employed as the primary treatment for oral diseases, the emergence of drug-resistant bacteria has necessitated the exploration of alternative therapeutic approaches. One such modality is antimicrobial photodynamic therapy (aPDT), which utilizes light and photosensitizers. Indeed, aPDT has been used alone or in combination with other treatment options dealing with periodontal disease for the elimination of biofilms from bacterial community to achieve bone formation and/or tissue regeneration. In this review article, in addition to factors affecting the efficacy of aPDT, various photosensitizers, the latest technology and perspectives on aPDT are discussed in detail. More importantly, the article emphasizes the novel design and clinical applications of photosensitizers, as well as the synergistic effects of chemical and biomolecules with aPDT to achieve the complete eradication of biofilms and even enhance the biological performance of tissues surrounding the treated oral area.
Collapse
Affiliation(s)
- Ying Jao
- Institute of Oral Science, Chung Shan Medical University, Taichung, Taiwan
| | - Shinn-Jyh Ding
- Institute of Oral Science, Chung Shan Medical University, Taichung, Taiwan
- Department of Stomatology, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chun-Cheng Chen
- Department of Stomatology, Chung Shan Medical University Hospital, Taichung, Taiwan
- School of Dentistry, Chung Shan Medical University, Taichung, Taiwan
| |
Collapse
|
7
|
Saraswathy M, Komath M, Ragini DD, SomanPillai SarojiniAmma P, Lathikumari SS, Akhandanandan MN. Bactericidal Activity of Superabsorbent Polymer Granules for Their Applications in Respiratory Fluid Solidification Systems. ACS OMEGA 2023; 8:25114-25121. [PMID: 37483248 PMCID: PMC10357423 DOI: 10.1021/acsomega.3c01994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/01/2023] [Indexed: 07/25/2023]
Abstract
Disposal of respiratory secretions from patients having contagious diseases (e.g., COVID-19 and tuberculosis) poses a high risk of infection for healthcare workers. AcryloSorb canister liner bags are highly efficient for the safe handling of contagious respiratory secretions via solidification and disinfection processes. The canister liner bags are lined with disinfectant-impregnated superabsorbent polymer (DSAP) granules. The liner structure in the bag has a patented design that has upward progressive absorbent availability (Indian Patent application # 202041019872). AcryloSorb canister liner bags can decontaminate the fluid secretions absorbed in the bag and solidify within 10 min. The present study focused on the bactericidal effect of DSAP using Gram-negative bacteria, Klebsiella pneumoniae, and Gram-positive bacteria, methicillin-resistantStaphylococcus aureus (MRSA). Disinfectants such as peracetic acid (ethaneperoxic acid), sodium dichloroisocyanurate (sodium 3,5-dichloro-2,4,6-trioxo-1,3,5-triazinan-1-ide), rose bengal (disodium; 2,3,4,5-tetrachloro-6-(2,4,5,7-tetraiodo-3-oxido-6-oxoxanthen-9-yl) benzoate), and N,N-dimethyl-N-[3-(triethoxysilyl)propyl]octadecan-1-aminium chloride at different weight ratios were impregnated in superabsorbent polymer (SAP) granules. The bactericidal activities of DSAP were studied along with its solidification capacity. Disinfectants showed different bactericidal activities when impregnated with SAP granules. For example, peracetic acid-impregnated SAP granules (DSAP-P) showed 100% bactericidal activity for both Klebsiella pneumoniae and MRSA at 0.5 wt % peracetic acid. Sodium dichloroisocyanurate-impregnated SAP granules showed 100% bactericidal activity only at 5 wt % sodium dichloroisocyanurate (DSAP-S5). Even though peracetic acid was highly effective, SAP granules collapsed when impregnated with peracetic acid. The ease of handling, disinfection efficacy, and preserving the morphology of SAP granules make DSAP-S5, a suitable candidate for AcryloSorb canister liner bags.
Collapse
Affiliation(s)
- Manju Saraswathy
- Department
of Biomaterial Science and Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences
and Technology, Trivandrum 695012, India
| | - Manoj Komath
- Divisin
of Bioceramics, Department of Biomaterial Science and Technology,
Biomedical Technology Wing, Sree Chitra
Tirunal Institute for Medical Sciences and Technology, Trivandrum 695012, India
| | - Deepu Damodharan Ragini
- Department
of Biomaterial Science and Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences
and Technology, Trivandrum 695012, India
| | - Pradeepkumar SomanPillai SarojiniAmma
- Division
of Microbial Technology, Department of Applied Biology, Biomedical
Technology Wing, Sree Chitra Tirunal Institute
for Medical Sciences and Technology, Trivandrum 695012, India
| | - Sreejith Sasidharan Lathikumari
- Department
of Biomaterial Science and Technology, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences
and Technology, Trivandrum 695012, India
| | - Maya Nandkumar Akhandanandan
- Division
of Microbial Technology, Department of Applied Biology, Biomedical
Technology Wing, Sree Chitra Tirunal Institute
for Medical Sciences and Technology, Trivandrum 695012, India
| |
Collapse
|
8
|
Vohra F, Alsaif R, Alsayed H, AlSaeed MM, Mourad AME. Decontamination of lithium disilicate ceramics using various photosensitizers, herbal and chemical disinfectants, and the effect of surface conditioners on bond strength values. Photodiagnosis Photodyn Ther 2023:103619. [PMID: 37209762 DOI: 10.1016/j.pdpdt.2023.103619] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 05/22/2023]
Abstract
AIM To assess and compare the antimicrobial efficacy of disinfectants on lithium disilicate ceramic (LDC) used in dental applications and shear bond strength (SBS) of LDC after using different conditioners hydrofluoric acid (HF), self-etching ceramic primers (SECP) and Neodymium-doped yttrium orthovanadate (Nd: YVO4). MATERIALS AND METHODS One hundred and twenty LDC discs were fabricated by auto-polymerizing acrylic resin using the lost wax technique. S. aureus, S. mutans, and C. albican were inoculated on thirty discs (n=30 each). Each group was further divided into three subgroups based on different disinfecting agents used (n=30) Group 1: Garlic extract, Group 2: Rose Bengal (RB) activated by PDT, and Group 3: Sodium hypochlorite (NaOCl). An assessment of the survival rate of microorganisms was performed. The remaining thirty samples were surface treated using three different LDC surface conditioners (n=10) Group 1: HF + Silane (S), group 2: SECP, and Group 3: Nd: YVO4 laser+S. SBS and failure mode analysis were performed using a universal testing machine and stereomicroscope at 40x magnification, The statistical analysis was conducted using one-way ANOVA and Post Hoc Tukey test. RESULTS Garlic extract, RB, and 2% NaOCl sample displayed comparable outcomes of antimicrobial potency against C. albicans, S aureus, and S. mutans (p>0.05). Furthermore, SBS analysis showed HF+S, SECP, and Nd: YVO4+S exhibited comparable outcomes of bond strength (p>0.05). CONCLUSION Garlic extract and Rose bengal activated by PDT can be contemplated as alternatives to the chemical agent NaOCl used for LDC disinfection. Similarly, SECP and Nd: YVO4 possess the potential to be used for the surface conditioning of LDC to improve the bond integrity with resin cement.
Collapse
Affiliation(s)
- Fahim Vohra
- Prosthetic dental sciences, college of dentistry, King Saud university.
| | - Rawan Alsaif
- Prosthetic dental sciences, college of dentistry, King Saud university.
| | - Hussain Alsayed
- Prosthetic dental sciences, college of dentistry, King Saud university.
| | - Mojahid M AlSaeed
- University Dental Hospital King Saud University P.O Box 60169, Riyadh 11545, Saudi Arabia.
| | | |
Collapse
|
9
|
Pierański MK, Kosiński JG, Szymczak K, Sadowski P, Grinholc M. Antimicrobial Photodynamic Inactivation: An Alternative for Group B Streptococcus Vaginal Colonization in a Murine Experimental Model. Antioxidants (Basel) 2023; 12:847. [PMID: 37107222 PMCID: PMC10135335 DOI: 10.3390/antiox12040847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/24/2023] [Accepted: 03/30/2023] [Indexed: 04/05/2023] Open
Abstract
BACKGROUND Streptococcus agalactiae, referred to as Group B Streptococcus (GBS), is a prominent bacterium causing life-threatening neonatal infections. Although antibiotics are efficient against GBS, growing antibiotic resistance forces the search for alternative treatments and/or prevention approaches. Antimicrobial photodynamic inactivation (aPDI) appears to be a potent alternative non-antibiotic strategy against GBS. METHODS The effect of rose bengal aPDI on various GBS serotypes, Lactobacillus species, human eukaryotic cell lines and microbial vaginal flora composition was evaluated. RESULTS RB-mediated aPDI was evidenced to exert high bactericidal efficacy towards S. agalactiae in vitro (>4 log10 units of viability reduction for planktonic and >2 log10 units for multispecies biofilm culture) and in vivo (ca. 2 log10 units of viability reduction in mice vaginal GBS colonization model) in microbiological and metagenomic analyses. At the same time, RB-mediated aPDI was evidenced to be not mutagenic and safe for human vaginal cells, as well as capable of maintaining the balance and viability of vaginal microbial flora. CONCLUSIONS aPDI can efficiently kill GBS and serve as an alternative approach against GBS vaginal colonization and/or infections.
Collapse
Affiliation(s)
- Michał K. Pierański
- Laboratory of Photobiology and Molecular Diagnostics, Intercollegiate Faculty of Biotechnology University of Gdańsk and Medical University of Gdańsk, University of Gdańsk, 80-307 Gdańsk, Poland
| | - Jan G. Kosiński
- Department of Computational Biology, Institute of Molecular Biology and Biotechnology, Faculty of Biology, Adam Mickiewicz University in Poznań, 61-712 Poznań, Poland
| | - Klaudia Szymczak
- Laboratory of Photobiology and Molecular Diagnostics, Intercollegiate Faculty of Biotechnology University of Gdańsk and Medical University of Gdańsk, University of Gdańsk, 80-307 Gdańsk, Poland
| | - Piotr Sadowski
- Department of Pathomorphology, University Hospital in Kraków, 31-501 Kraków, Poland
| | - Mariusz Grinholc
- Laboratory of Photobiology and Molecular Diagnostics, Intercollegiate Faculty of Biotechnology University of Gdańsk and Medical University of Gdańsk, University of Gdańsk, 80-307 Gdańsk, Poland
| |
Collapse
|
10
|
Anjani QK, Demartis S, Volpe-Zanutto F, Li H, Sabri AHB, Gavini E, Donnelly RF. Fluorescence-Coupled Techniques for Determining Rose Bengal in Dermatological Formulations and Their Application to Ex Vivo Skin Deposition Studies. Pharmaceutics 2023; 15:pharmaceutics15020408. [PMID: 36839730 PMCID: PMC9960589 DOI: 10.3390/pharmaceutics15020408] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 01/10/2023] [Accepted: 01/23/2023] [Indexed: 01/27/2023] Open
Abstract
Rose Bengal (RB) is a fluorescent dye with several potential biomedical applications, particularly in dermatology. Due to RB's poor physicochemical properties, several advanced delivery systems have been developed as a potential tool to promote its permeation across the skin. Nevertheless, no validated quantitative method to analyse RB within the skin is described in the literature. Considering RB exhibits a conjugated ring system, the current investigation proposes fluorescence-based techniques beneficial for qualitatively and quantitatively determining RB delivered to the skin. Notably, the development and validation of a fluorescence-coupled HPLC method to quantify RB within the skin matrix are herein described for the first time. The method was validated based on the ICH, FDA and EMA guidelines, and the validated parameters included specificity, linearity, LOD, LLOQ, accuracy and precision, and carry-over and dilution integrity. Finally, the method was applied to evaluate RB's ex vivo permeation and deposition profiles when loaded into dermatological formulations. Concerning qualitative determination, multiphoton microscopy was used to track the RB distribution within the skin strata, and fluorescence emission spectra were investigated to evaluate RB's behaviour when interacting with different environments. The analytical method proved specific, precise, accurate and sensitive to analyse RB in the skin. In addition, qualitative side-analytical techniques were revealed to play an essential role in evaluating the performance of RB's dermatological formulation.
Collapse
Affiliation(s)
- Qonita Kurnia Anjani
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
- Fakultas Farmasi, Universitas Megarezky, Jl. Antang Raya No. 43, Makassar 90234, Indonesia
| | - Sara Demartis
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
- Department of Chemical, Physical, Mathematical and Natural Sciences, University of Sassari, Piazza Università 21, 07100 Sassari, Italy
| | - Fabiana Volpe-Zanutto
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Huanhuan Li
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Akmal Hidayat Bin Sabri
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
| | - Elisabetta Gavini
- Department of Medicine, Surgery and Pharmacy, University of Sassari, Piazza Università 21, 07100 Sassari, Italy
- Correspondence: (E.G.); (R.F.D.); Tel.: +39-079-228752 (E.G.); +44-(0)-2890-972-251 (R.F.D.)
| | - Ryan F. Donnelly
- School of Pharmacy, Queen’s University Belfast, Medical Biology Centre, 97 Lisburn Road, Belfast BT9 7BL, UK
- Correspondence: (E.G.); (R.F.D.); Tel.: +39-079-228752 (E.G.); +44-(0)-2890-972-251 (R.F.D.)
| |
Collapse
|
11
|
Mori N, Kawasaki H, Nishida E, Kanemoto Y, Miyaji H, Umeda J, Kondoh K. Rose bengal-decorated rice husk-derived silica nanoparticles enhanced singlet oxygen generation for antimicrobial photodynamic inactivation. JOURNAL OF MATERIALS SCIENCE 2023; 58:2801-2813. [PMID: 36713647 PMCID: PMC9875779 DOI: 10.1007/s10853-023-08194-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 01/10/2023] [Indexed: 06/18/2023]
Abstract
UNLABELLED Rice husks are well known for their high silica content, and the RH-derived silica nanoparticles (RH NPs) are amorphous and biocompatible; therefore, they are suitable raw materials for biomedical applications. In this study, rose bengal-impregnated rice husk nanoparticles (RB-RH NPs) were prepared for their potential photosensitization and 1O2 generation as antimicrobial photodynamic inactivation. RB is a halogen-xanthene type's photosensitizer showing high singlet oxygen efficiency, and the superior photophysical properties are desirable for RB in the antimicrobial photodynamic inactivation of bacteria. To enhance the binding of anionic RB to RH NPs, we conducted cationization for the RH NPs using polyethyleneimine (PEI). The control of the RB adsorption state on cationic PEI-modified RH NPs was essential for RB RH-NP photosensitizers to obtain efficient 1O2 generation. Minimizing RB aggregation allowed highly efficient 1O2 production from RB-RH NPs at the molar ratio of RB with the PEI, XRB/PEI. = 0.1. The RB-RH NPs have significant antimicrobial activity against Streptococcus mutans compared to free RB after white light irradiation. The RB-RH NP-based antimicrobial photodynamic inactivation can be employed effectively in treating Streptococcus mutans for dental applications. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10853-023-08194-z.
Collapse
Affiliation(s)
- Nanase Mori
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita-shi, Osaka 564-8689 Japan
| | - Hideya Kawasaki
- Department of Chemistry and Materials Engineering, Faculty of Chemistry, Materials and Bioengineering, Kansai University, Suita-shi, Osaka 564-8689 Japan
| | - Erika Nishida
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, Sapporo, Hokkaido 060-8586 Japan
| | - Yukimi Kanemoto
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, Sapporo, Hokkaido 060-8586 Japan
| | - Hirofumi Miyaji
- Department of Periodontology and Endodontology, Faculty of Dental Medicine, Hokkaido University, Sapporo, Hokkaido 060-8586 Japan
| | - Junko Umeda
- Joining and Welding Research Institute, Osaka University, Ibaraki, 567-0047 Japan
| | - Katsuyoshi Kondoh
- Joining and Welding Research Institute, Osaka University, Ibaraki, 567-0047 Japan
| |
Collapse
|
12
|
Kumari U, Zafar T, Shafqat S, Askary SH, Qasim M, Kamran MA, Baig EA, Shaikh AC, Qureshi A. Caries-affected dentin disinfection using Triphala, Indocyanine green, and Potassium Titanyl Phosphate laser and their effect on adhesive bond strength. Photodiagnosis Photodyn Ther 2022; 41:103257. [PMID: 36592785 DOI: 10.1016/j.pdpdt.2022.103257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 12/23/2022] [Accepted: 12/28/2022] [Indexed: 12/31/2022]
Abstract
AIM To assess the impact of new cavity sterilization types using ozone water (OW), Potassium Titanyl Phosphate laser (KTPL), Triphala, and indocyanine green photosensitizer (ICGP) on adhesive bond strength. MATERIALS AND METHODS Fifty human permanent molars were included based on the criteria of International Caries Detection and Assessment System (ICDAS) scores 4 and 5 visual examinations, surface hardness valuation, staining by a caries detector solution, and radiographs. Caries-affected dentin (CAD) samples were randomly distributed into groups based on methods of disinfection (n = 10). Group 1: chlorhexidine, group 2: ow, group 3: KTPL, group 4: Triphala, and group 5: ICGP. Following disinfection, specimens were applied with Adper prime and bond NT and then restored with resin composite. All specimens were positioned in a jig of the universal testing machine for shear bond strength (SBS). The debonded samples were analyzed under a stereomicroscope at 40x magnification to determine the type of failure. Analysis of variance (ANOVA) and Tukey HSD tests were used keeping the level of significance p < 0.05. RESULTS The highest bond of adhesive resin was displayed by group 2 specimens cleaned using OW (16.71 ± 0.19 MPa). Whereas, the lowest bond integrity was observed by group 5 specimens disinfected using ICGP (11.21 ± 0.16 MPa). It was observed samples disinfected with OW (16.71 ± 0.19 MPa) in group 2 and samples in group 4 (16.09 ± 0.26 MPa) treated with Triphala displayed comparable outcomes of bond strength (p > 0.05). It was observed that group 2 (70%) and 4 (80%) treated specimens accounted mostly for cohesive failure. However, groups 1 (80%), 3 (60%), and 5 (70%) displayed an adhesive failure pattern. CONCLUSION OW and Triphala displayed better bond integrity of adhesive resin to CAD and therefore have the potential to be used as a cavity disinfectant in clinical settings. However, ICGP and KTPL displayed weak bonds of adhesive to CAD. More work is needed to extrapolate the findings of the present study.
Collapse
Affiliation(s)
- Ujala Kumari
- Dental Clinician, Private Dental Clinic, Karachi, Pakistan
| | | | | | - Syed Hussain Askary
- Department of Community Dentistry, Fatima Jinnah Dental College, Karachi, Pakistan
| | - Muhammad Qasim
- Department of Operative Dentistry and Endodontics King Khalid University, Abha, Saudi Arabia
| | - Muhammad Abdullah Kamran
- Department of Pedodontics and Orthodontics Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Eisha Abrar Baig
- Department of Operative Dentistry, Dow International Dental College, Karachi, Pakistan
| | - Amynah C Shaikh
- Department of Oral Biology, College of Dentistry, Dow International Dental College, Karachi, Pakistan
| | - Ambrina Qureshi
- Department of Community and Preventive Dentistry, Dow University of Health Sciences, Karachi, Pakistan.
| |
Collapse
|
13
|
Nisar SS, Irfan F, Hammad H, Abdulla AM, Kamran MA, Barakat A, Niazi F, Baig EA, Qureshi A. Disinfection of caries-affected dentin using potassium titanyl phosphate laser, Rose bengal and Ozonated water on shear bond strength of deciduous teeth. Photodiagnosis Photodyn Ther 2022; 40:103044. [PMID: 35914695 DOI: 10.1016/j.pdpdt.2022.103044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 07/23/2022] [Accepted: 07/28/2022] [Indexed: 12/14/2022]
Abstract
AIM To assess the efficacy of disinfection of caries-effected dentin (CAD) using KTP laser and different decontamination methods using ozonated water (OW), Rose Bengal photosensitizer (RBP), chlorhexidine (CHX), and Er, YAG laser on the shear bond strength (SBS) of adhesive resin bonded to deciduous teeth. MATERIAL AND METHODS A total of 50 extracted and radiographically verified carious primary molars were collected and scrutinized according to ICDAS criteria. Specimens were allocated randomly into five groups (n = 10) as per the type of CAD disinfectants. KTP laser, OW, RBP, CHX (control), and Er, YAG laser. After cavity sanitization, a resin adhesive (prime and bond NT) was smeared on the dentinal exterior followed by incremental composite filling. SBS evaluation was performed by employing specimens in the universal testing machine. The debonded surface was assessed under 40x magnification in a stereomicroscope to ascertain fracture mode. Statistical analysis was done by using the ANOVA and the Post Hoc Tukey multiple comparison tests (p < 0.05). RESULTS The highest SBS was exhibited by group 2 i.e., when OW was employed for CAD disinfection (10.25 ± 0.24 MPa). Whereas, the lowest SBS bond value was unveiled by samples in group 3 when RBP was applied for dentin surface sanitization (7.85 ± 0.59 MPa).CAD disinfection with KTP laser (8.25 ± 0.41 MPa), CHX (8.19 ± 0.73 MPa), and RBP displayed comparable bond values (p > 0.05). CONCLUSION Ozonated water and Er, YAG laser could be employed as cavity disinfectants in primary teeth as they demonstrated better shear bond strength without jeopardizing the adhesive binding capacity of restorative resins bonded to caries-affected dentin.
Collapse
Affiliation(s)
- Sidra Sadaf Nisar
- Department of Science of Dental Materials, Dow International Dental College, Karachi, Pakistan.
| | - Fariha Irfan
- Department of Operative Dentistry and Endodontics, Hamdard College of Medicine and Dentistry, Hamdard University, Karachi, Pakistan.
| | - Hina Hammad
- Department of Operative Dentistry and Endodontics, Hamdard College of Medicine and Dentistry, Hamdard University, Karachi, Pakistan
| | - Anshad M Abdulla
- Department of Pedodontics and Orthodontics Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia.
| | - Muhammad Abdullah Kamran
- Department of Pedodontics and Orthodontics Sciences, College of Dentistry, King Khalid University, Abha, Saudi Arabia.
| | - Ali Barakat
- Department of Restorative and Prosthetic Dentistry, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia.
| | - Fayez Niazi
- Department of Restorative and Prosthetic Dentistry, College of Dentistry, Dar Al Uloom University, Riyadh, Saudi Arabia.
| | - Eisha Abrar Baig
- Department of Operative Dentistry, Dow International Dental College, Pakistan.
| | - Ambrina Qureshi
- Department of Community and Preventive Dentistry, Dow University of Health Sciences, Karachi, Pakistan.
| |
Collapse
|
14
|
Heo KJ, Lee DU, Shin JH, Park J, Lee BJ, Shin J, Jeong SB, Hwang GB, MacRobert AJ, Parkin IP, Jung JH, Choi DY. Transparent, Robust, and Photochemical Antibacterial Surface Based on Hydrogen Bonding between a Si-Al and Cationic Dye. ACS APPLIED MATERIALS & INTERFACES 2022; 14:53285-53297. [PMID: 36395463 DOI: 10.1021/acsami.2c16071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Healthcare-associated infections can occur and spread through direct contact with contaminated fomites in a hospital, such as mobile phones, tablets, computer keyboards, doorknobs, and other surfaces. Herein, this study shows a transparent, robust, and visible light-activated antibacterial surface based on hydrogen bonds between a transparent silica-alumina (Si-Al) sol-gel and a visible light-activated photosensitizer, such as crystal violet (CV). The study of the bonding mechanisms revealed that hydrogen bonding predominantly occurs between the N of CV and Al-OH. Apart from CV, Si-Al can be combined with a variety of dyes, highlighting its potential for wide application. The Si-Al@CV film selectively generates singlet oxygen using ambient visible light, triggering potent photochemical antibacterial performance against Gram-positive and Gram-negative bacteria. Additionally, the Si-Al@CV film is stable even after mechanical stability tests such as tape adhesion, scratch, bending, and water immersion. In vitro cytotoxicity tests using C2C12 myoblast cells showed that the Si-Al@CV film is a biocompatible material. This work suggests a new approach for designing a transparent and robust touchscreen surface with photochemical antibacterial capability against healthcare-associated infections.
Collapse
Affiliation(s)
- Ki Joon Heo
- Department of Chemistry, University College London, LondonWC1H 0AJ, United Kingdom
- School of Mechanical Engineering, Chonnam National University, Gwangju61186, Republic of Korea
| | - Dong Uk Lee
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon38822, Republic of Korea
| | - Jae Hak Shin
- Department of Mechanical Engineering, Sejong University, Seoul05006, Republic of Korea
| | - Junghun Park
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon38822, Republic of Korea
| | - Byeong Jin Lee
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon38822, Republic of Korea
| | - Juhun Shin
- Department of Chemistry, University College London, LondonWC1H 0AJ, United Kingdom
| | - Sang Bin Jeong
- Department of Mechanical Engineering, Sejong University, Seoul05006, Republic of Korea
| | - Gi Byoung Hwang
- Department of Chemistry, University College London, LondonWC1H 0AJ, United Kingdom
| | - Alexander J MacRobert
- UCL Division of Surgery and Interventional Science, Royal Free Campus, LondonNW3 2PF, United Kingdom
| | - Ivan P Parkin
- Department of Chemistry, University College London, LondonWC1H 0AJ, United Kingdom
| | - Jae Hee Jung
- Department of Mechanical Engineering, Sejong University, Seoul05006, Republic of Korea
| | - Dong Yun Choi
- Biomedical Manufacturing Technology Center, Korea Institute of Industrial Technology, Yeongcheon38822, Republic of Korea
| |
Collapse
|
15
|
Hung WK, Tseng YH, Lin CC, Chen SA, Hsu CH, Li CF, Chen YJ, Tseng ZL. Anion-Exchange Blue Perovskite Quantum Dots for Efficient Light-Emitting Devices. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3957. [PMID: 36432243 PMCID: PMC9693500 DOI: 10.3390/nano12223957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/01/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
In this study, blue perovskite quantum dots (PQDs) were prepared using didodecyldimethylammonium bromide (DDAB), which can passivate surface defects caused by the loss of surface ligands and reduce particle size distribution. After the passivation of DDAB, blue CsPbClxBr3-x PQDs dispersed in n-octane produced a more compact and uniform PQD thin film than the non-passivated ones. The resulting device showed a stabile lifetime, and an EL peak of 470 nm and a maximum EQE of 1.63% were obtained at an operating voltage of 2.6 V and a current density of 0.34 mA/cm2. This work aims to provide a simple method to prepare blue-emitting PQDs and high-performance PQD-based light-emitting devices.
Collapse
Affiliation(s)
- Wei-Kuan Hung
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Yi-Hsun Tseng
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Chun-Cheng Lin
- Department of Mathematic and Physical Sciences, General Education, R.O.C. Air Force Academy, Kaohsiung 820009, Taiwan
| | - Sih-An Chen
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
- Department of Mathematic and Physical Sciences, General Education, R.O.C. Air Force Academy, Kaohsiung 820009, Taiwan
| | | | - Chen-Feng Li
- Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Yen-Ju Chen
- Department of Electronic Engineering, Ming Chi University of Technology, New Taipei 243303, Taiwan
| | - Zong-Liang Tseng
- Department of Electronic Engineering, Ming Chi University of Technology, New Taipei 243303, Taiwan
| |
Collapse
|
16
|
Yamada I, Shiba K, Galindo TGP, Tagaya M. Drug Molecular Immobilization and Photofunctionalization of Calcium Phosphates for Exploring Theranostic Functions. Molecules 2022; 27:5916. [PMID: 36144659 PMCID: PMC9504434 DOI: 10.3390/molecules27185916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
Theranostics (bifunction of therapeutics and diagnostics) has attracted increasing attention due to its efficiency that can reduce the physical and financial burden on patients. One of the promising materials for theranostics is calcium phosphate (CP) and it is biocompatible and can be functionalized not only with drug molecules but also with rare earth ions to show photoluminescence that is necessary for the diagnostic purpose. Such the CP-based hybrids are formed in vivo by interacting between functional groups of organic molecules and inorganic ions. It is of great importance to elucidate the interaction of CP with the photofunctional species and the drug molecules to clarify the relationship between the existing state and function. Well-designed photofunctional CPs will contribute to biomedical fields as highly-functional ormultifunctional theranostic materials at the nanoscales. In this review, we describe the hybridization between CPs and heterogeneous species, mainly focusing on europium(III) ion and methylene blue molecule as the representative photofunctional species for theranostics applications.
Collapse
Affiliation(s)
- Iori Yamada
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka 940-2188, Niigata, Japan
| | - Kota Shiba
- Center for Functional Sensor & Actuator (CFSN), Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Ibaraki, Japan
| | | | - Motohiro Tagaya
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka 940-2188, Niigata, Japan
| |
Collapse
|
17
|
Uliana MP, da Cruz Rodrigues A, Ono BA, Pratavieira S, de Oliveira KT, Kurachi C. Photodynamic Inactivation of Microorganisms Using Semisynthetic Chlorophyll a Derivatives as Photosensitizers. Molecules 2022; 27:5769. [PMID: 36144496 PMCID: PMC9653790 DOI: 10.3390/molecules27185769] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/29/2022] [Accepted: 09/01/2022] [Indexed: 08/27/2023] Open
Abstract
In this study, we describe the semisynthesis of cost-effective photosensitizers (PSs) derived from chlorophyll a containing different substituents and using previously described methods from the literature. We compared their structures when used in photodynamic inactivation (PDI) against Staphylococcus aureus, Escherichia coli, and Candida albicans under different conditions. The PSs containing carboxylic acids and butyl groups were highly effective against S. aureus and C. albicans following our PDI protocol. Overall, our results indicate that these nature-inspired PSs are a promising alternative to selectively inactivate microorganisms using PDI.
Collapse
Affiliation(s)
- Marciana Pierina Uliana
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, São Paulo CEP 13560-970, Brazil
- Departamento de Química, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235-SP-310, São Carlos, São Paulo CEP 13565-905, Brazil
- Universidade Federal da Integração Latino-Americana, Foz do Iguaçu CEP 85866-000, Brazil
| | | | - Bruno Andrade Ono
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, São Paulo CEP 13560-970, Brazil
| | - Sebastião Pratavieira
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, São Paulo CEP 13560-970, Brazil
| | - Kleber Thiago de Oliveira
- Departamento de Química, Universidade Federal de São Carlos, Rodovia Washington Luís, km 235-SP-310, São Carlos, São Paulo CEP 13565-905, Brazil
| | - Cristina Kurachi
- Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, São Paulo CEP 13560-970, Brazil
| |
Collapse
|
18
|
AlHamdan EM. Soft Denture liner and microbial disinfection with contemporary and conventional agents. Photodiagnosis Photodyn Ther 2022; 38:102768. [PMID: 35183780 DOI: 10.1016/j.pdpdt.2022.102768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Revised: 02/12/2022] [Accepted: 02/16/2022] [Indexed: 10/19/2022]
Abstract
AIM The present study aimed to assess the effect of PDT, herbal and chemical disinfectants on the dental pathogen adherence to soft denture liner colonized with E. coli, C. Albicans, S.aureus, and S. mutans. MATERIAL AND METHODS A total of 20 samples of soft-lined removable acrylic complete dentures were fabricated and subjected to the American Type Culture Collection (ATCC) for the inoculation of E.coli, C.albicans, S.mutans and S.aureus in an in-vitro setup. The samples were then randomly divided into four groups and immersed in group 1: 5 µm of Rose Bengal (RB), group 2: Neem extract, group 3: Tea tree oil (TTO), and group 4: 0.12% CHX solutions respectively. Statistical analysis was accomplished by the SPSS 10 statistical software for Windows at a significance level p< 0.05. Two-way ANOVA and Tukey's multiple comparison test were used to analyze the data and compare the means and standard deviation values of CFU/mL (log10) for exposed E. coli, C. albicans, S aureus, and S. mutans. RESULTS Intragroup comparison indicated E.coli and C.albicans did not unveil a decrease in reduction CFU/mL (log10) when SDL irradiated with RB 5 µm. Whereas, CFU/mL (log10) values of S.aureus; 2.62±0.68 CFU/mL and S.mutans: 3.41±0.13 CFU/mL plunged significantly (p<0.05). Likewise, S. aureus and S. mutans CFU/mL (log10) strain values display reduction when treated with all four disinfectants while the count of C.albicans unveiled a significant plunge with CHX, TTO and neem extract except RB (p<0.05) CONCLUSION: 0.12% CHX and TTO have enhanced antimicrobial efficacy in reducing adhered bacterial colonies of E.coli, C.albicans, S.aureus, and S.mutans (CFU)/mL on a denture soft liner.
Collapse
Affiliation(s)
- Eman M AlHamdan
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
| |
Collapse
|
19
|
Alfawaz YF. Disinfection of caries affected dentin using Rose Bengal, Titanium Sapphire Laser; Ammonium Hexa-fluorosilicate, and ozonated water on resin dentin bond strength. Photodiagnosis Photodyn Ther 2022; 39:102912. [PMID: 35597443 DOI: 10.1016/j.pdpdt.2022.102912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 10/18/2022]
Abstract
AIM The present study intended to evaluate the shear bond strength (SBS) of resin cement bonded to caries affected dentin (CAD) after disinfection with rose Bengal (RB), Ti-Sapphire Laser, Ammonium Hexafluorosilicate (NH4)2[SiF6], and ozonated water (O3) MATERIAL AND METHODS: A total of 100 extracted human mandibular molars were acquired using caries severity code, 6 of the ICDAS criteria. To achieve homogeneity and prevent size-biased distributions, the average cavity preparation of all specimens had a depth of 2 mm and a breadth of 3 mm. Specimens were divided into five groups (n = 20) at random according to type of disinfection. Group 1: control group, Group 2: RB, Group 3: O3, Group 4: Ti-sapphire laser, and Group 5: (NH4)2[SiF6]. All specimens were etch and rinsed, bonding agent was applied and restored with resin cement. Estimation of SBS was performed by placing samples (10/group) in universal testing machine. Stereomicroscope under 40 × magnification was employed for failure mode analysis (FMA). Statistical analysis was executed using the ANOVA and the Tukey multiple test (p<0.05). RESULTS The highest SBS was demonstrated in the control group when CAD bonded to resin cement without disinfection (18.22±1.14 MPa). Likewise, the lowest SBS values were unveiled by CAD disinfection with O3 (12.44±1.36 MPa). Similarly, CAD when disinfected with RB (16.25±1.01 MPa) and Ti-sapphire laser (16.25±1.22 MPa) bonded to resin cement exhibited comparable bond results (p>0.05). CONCLUSION Caries affected dentin when treated with etch and rinse technique without the use of disinfectant displayed the highest SBS. However, it was seen that utilization of various disinfectants has altered the adhesion capacity or bonding efficacy of caries-affected dentin.
Collapse
Affiliation(s)
- Yasser F Alfawaz
- Department of restorative dental sciences, College of dentistry, King Saud University, Riyadh, Saudi Arabia.
| |
Collapse
|
20
|
Legabão BC, Fernandes JA, de Oliveira Barbosa GF, Bonfim-Mendonça PS, Svidzinski TI. The zoonosis sporotrichosis can be successfully treated by photodynamic therapy: A scoping review. Acta Trop 2022; 228:106341. [PMID: 35131203 DOI: 10.1016/j.actatropica.2022.106341] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 02/01/2022] [Accepted: 02/03/2022] [Indexed: 12/20/2022]
Abstract
Sporotrichosis is a worldwide zoonosis, prevalent in tropical and subtropical regions. In recent years, there has been a substantial increase in human and feline cases reported in Brazil. Despite this, the antifungal treatment for sporotrichosis is still limited, and thus, research into new therapeutic modalities must be encouraged. Recently, photodynamic therapy has been introduced as a treatment for sporotrichosis. This work presents an overview of both in vitro and in vivo studies that have used photodynamic therapy in the context of photoinactivation of Sporothrix species. Until now, as far as the authors are aware, this is the first scope review specifically on photodynamic therapy for the treatment of sporotrichosis. A systematic electronic search was conducted in two databases: Web of Science and PubMed. Seven original articles published from 2010 to July 2021 were selected, six of which met the proposed inclusion and exclusion criteria and were considered in this scoping review. Concerning the photoinactivation of Sporothrix spp. the results have been promising as studies, in both animals and humans, have reported significant clinical and mycological effects. The most used photosensitizers were methylene blue and its derivatives, and aminolevulinic acid and its methyl derivative, methyl aminolevulinic acid. In conclusion, photodynamic therapy has great potential in treatment of sporotrichosis, as its fungicidal effect both in vitro and in vivo has clearly been demonstrated. Photodynamic therapy could be used in conjunction with classic antifungal agents to optimize treatment outcomes.
Collapse
|
21
|
Efficacy of contemporary agents on disinfection and surface roughness of polyetheretherketone implant abutments. Photodiagnosis Photodyn Ther 2022; 38:102798. [PMID: 35276345 DOI: 10.1016/j.pdpdt.2022.102798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/01/2022] [Accepted: 03/07/2022] [Indexed: 11/21/2022]
Abstract
AIM The present study was designed to estimate the disinfection and surface roughness (Ra) of colonized (E. coli, C. albicans, S.aureus, and S. mutans) PEEK implant abutment disinfected with PDT, chemical, and herbal agents. MATERIAL AND METHODS The American Type Culture Collection (ATCC) inoculated E.coli, C.albicans, S.mutans, and S.aureus in an in-vitro scenario using 60 PEEK implant abutment samples provided by the manufacturer. Following that, the samples were distributed in four disinfection methods categories - group 1: 5mM Rose Bengal PS (RB), group 2: ultrasonic disinfection (UD), group 3: 2% glutaraldehyde (GaH), and group 4: tea tree oil (TTO). To scrutinize the data and compare the means and standard deviations of CFU/mL (log10) for exposed E. coli, Candida albicans, S.aureus, and S.mutans, a two-way ANOVA and Tukey's multiple comparison test were performed. RESULTS Specimens treated with 2% GaH, UD, and TTO validated a significant reduction in E. coli, C. albicans, S aureus, and S. mutans CFU/mL (log10) colonies. Intragroup assessment designated that there is no reduction in CFU/mL (log10) of E.coli and C.albicans when PEEK implant abutment specimens are irradiated with 5Mm RB. A decline is seen in values of S. aureus, and S. mutans microbial strains on treatment with all four cleansers while the computation of C.albicans and E.coli colonies unveiled significant reduction with GaH, UD, and TTO except RB (p<0.05). The results of Ra showed that PEEK fabricated implant abutment specimens, when treated with UD (3.472±0.561μm), displayed a significantly higher Ra value as compared to other analyzed cleansing methods. CONCLUSION . Disinfection with 2% glutaraldehyde and Tea tree oil showed maximum antimicrobial efficacy and lower Ra values for PEEK implant abutments colonized with bacterial strains of E.coli, C.albicans, S.aureus, and S.mutans.
Collapse
|
22
|
Kurosu M, Mitachi K, Yang J, Pershing EV, Horowitz BD, Wachter EA, Lacey JW, Ji Y, Rodrigues DJ. Antibacterial Activity of Pharmaceutical-Grade Rose Bengal: An Application of a Synthetic Dye in Antibacterial Therapies. Molecules 2022; 27:322. [PMID: 35011554 PMCID: PMC8746496 DOI: 10.3390/molecules27010322] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/21/2021] [Accepted: 12/27/2021] [Indexed: 11/27/2022] Open
Abstract
Rose bengal has been used in the diagnosis of ophthalmic disorders and liver function, and has been studied for the treatment of solid tumor cancers. To date, the antibacterial activity of rose bengal has been sporadically reported; however, these data have been generated with a commercial grade of rose bengal, which contains major uncontrolled impurities generated by the manufacturing process (80-95% dye content). A high-purity form of rose bengal formulation (HP-RBf, >99.5% dye content) kills a battery of Gram-positive bacteria, including drug-resistant strains at low concentrations (0.01-3.13 μg/mL) under fluorescent, LED, and natural light in a few minutes. Significantly, HP-RBf effectively eradicates Gram-positive bacterial biofilms. The frequency that Gram-positive bacteria spontaneously developed resistance to HP-RB is extremely low (less than 1 × 10-13). Toxicity data obtained through our research programs indicate that HP-RB is feasible as an anti-infective drug for the treatment of skin and soft tissue infections (SSTIs) involving multidrug-resistant (MDR) microbial invasion of the skin, and for eradicating biofilms. This article summarizes the antibacterial activity of pharmaceutical-grade rose bengal, HP-RB, against Gram-positive bacteria, its cytotoxicity against skin cells under illumination conditions, and mechanistic insights into rose bengal's bactericidal activity under dark conditions.
Collapse
Affiliation(s)
- Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, USA;
| | - Katsuhiko Mitachi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, USA;
| | - Junshu Yang
- Department of Veterinary and Biomedical Sciences, University of Minnesota, 205 VSB, 1971 Commonwealth Avenue, Saint Paul, MN 55108, USA; (J.Y.); (Y.J.)
| | - Edward V. Pershing
- Provectus Biopharmaceuticals, Inc., 10025 Investment Drive, Suite 250, Knoxville, TN 37932, USA; (E.V.P.); (B.D.H.); (E.A.W.); (J.W.L.III); (D.J.R.)
| | - Bruce D. Horowitz
- Provectus Biopharmaceuticals, Inc., 10025 Investment Drive, Suite 250, Knoxville, TN 37932, USA; (E.V.P.); (B.D.H.); (E.A.W.); (J.W.L.III); (D.J.R.)
| | - Eric A. Wachter
- Provectus Biopharmaceuticals, Inc., 10025 Investment Drive, Suite 250, Knoxville, TN 37932, USA; (E.V.P.); (B.D.H.); (E.A.W.); (J.W.L.III); (D.J.R.)
| | - John W. Lacey
- Provectus Biopharmaceuticals, Inc., 10025 Investment Drive, Suite 250, Knoxville, TN 37932, USA; (E.V.P.); (B.D.H.); (E.A.W.); (J.W.L.III); (D.J.R.)
| | - Yinduo Ji
- Department of Veterinary and Biomedical Sciences, University of Minnesota, 205 VSB, 1971 Commonwealth Avenue, Saint Paul, MN 55108, USA; (J.Y.); (Y.J.)
| | - Dominic J. Rodrigues
- Provectus Biopharmaceuticals, Inc., 10025 Investment Drive, Suite 250, Knoxville, TN 37932, USA; (E.V.P.); (B.D.H.); (E.A.W.); (J.W.L.III); (D.J.R.)
| |
Collapse
|
23
|
Tuchin VV, Genina EA, Tuchina ES, Svetlakova AV, Svenskaya YI. Optical clearing of tissues: Issues of antimicrobial phototherapy and drug delivery. Adv Drug Deliv Rev 2022; 180:114037. [PMID: 34752842 DOI: 10.1016/j.addr.2021.114037] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/23/2021] [Accepted: 10/28/2021] [Indexed: 02/08/2023]
Abstract
This review presents principles and novelties in the field of tissue optical clearing (TOC) technology, as well as application for optical monitoring of drug delivery and effective antimicrobial phototherapy. TOC is based on altering the optical properties of tissue through the introduction of immersion optical cleaning agents (OCA), which impregnate the tissue of interest. We also analyze various methods and kinetics of delivery of photodynamic agents, nanoantibiotics and their mixtures with OCAs into the tissue depth in the context of antimicrobial and antifungal phototherapy. In vitro and in vivo studies of antimicrobial phototherapies, such as photodynamic, photothermal plasmonic and photocatalytic, are summarized, and the prospects of a new TOC technology for effective killing of pathogens are discussed.
Collapse
|
24
|
Youf R, Müller M, Balasini A, Thétiot F, Müller M, Hascoët A, Jonas U, Schönherr H, Lemercier G, Montier T, Le Gall T. Antimicrobial Photodynamic Therapy: Latest Developments with a Focus on Combinatory Strategies. Pharmaceutics 2021; 13:1995. [PMID: 34959277 PMCID: PMC8705969 DOI: 10.3390/pharmaceutics13121995] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial photodynamic therapy (aPDT) has become a fundamental tool in modern therapeutics, notably due to the expanding versatility of photosensitizers (PSs) and the numerous possibilities to combine aPDT with other antimicrobial treatments to combat localized infections. After revisiting the basic principles of aPDT, this review first highlights the current state of the art of curative or preventive aPDT applications with relevant clinical trials. In addition, the most recent developments in photochemistry and photophysics as well as advanced carrier systems in the context of aPDT are provided, with a focus on the latest generations of efficient and versatile PSs and the progress towards hybrid-multicomponent systems. In particular, deeper insight into combinatory aPDT approaches is afforded, involving non-radiative or other light-based modalities. Selected aPDT perspectives are outlined, pointing out new strategies to target and treat microorganisms. Finally, the review works out the evolution of the conceptually simple PDT methodology towards a much more sophisticated, integrated, and innovative technology as an important element of potent antimicrobial strategies.
Collapse
Affiliation(s)
- Raphaëlle Youf
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| | - Max Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Ali Balasini
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (A.B.); (U.J.)
| | - Franck Thétiot
- Unité Mixte de Recherche (UMR), Centre National de la Recherche Scientifique (CNRS) 6521, Université de Brest (UBO), CS 93837, 29238 Brest, France
| | - Mareike Müller
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Alizé Hascoët
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| | - Ulrich Jonas
- Macromolecular Chemistry, Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (A.B.); (U.J.)
| | - Holger Schönherr
- Physical Chemistry I & Research Center of Micro- and Nanochemistry and (Bio)Technology of Micro and Nanochemistry and Engineering (Cμ), Department of Chemistry and Biology, University of Siegen, Adolf-Reichwein-Straße 2, 57076 Siegen, Germany; (M.M.); (M.M.)
| | - Gilles Lemercier
- Coordination Chemistry Team, Unité Mixte de Recherche (UMR), Centre National de la Recherche Scientifique (CNRS) 7312, Institut de Chimie Moléculaire de Reims (ICMR), Université de Reims Champagne-Ardenne, BP 1039, CEDEX 2, 51687 Reims, France
| | - Tristan Montier
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
- CHRU de Brest, Service de Génétique Médicale et de Biologie de la Reproduction, Centre de Référence des Maladies Rares Maladies Neuromusculaires, 29200 Brest, France
| | - Tony Le Gall
- Univ Brest, INSERM, EFS, UMR 1078, GGB-GTCA, F-29200 Brest, France; (R.Y.); (A.H.); (T.M.)
| |
Collapse
|
25
|
Disinfection of radicular dentin using Riboflavin, Rose Bengal, Curcumin, and Porfimer sodium on extrusion bond strength of fiber post to radicular dentin. Photodiagnosis Photodyn Ther 2021; 37:102625. [PMID: 34781034 DOI: 10.1016/j.pdpdt.2021.102625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 10/22/2021] [Accepted: 11/09/2021] [Indexed: 01/10/2023]
Abstract
AIM To assess the influence of different photosensitizers activated by PDT as a disinfectant in comparison to conventional sodium hypochlorite (NaOCl) on the EBS (extrusion bond strength) of FRCP with radicular dentin. METHODS A total of fifty single-rooted human maxillary central incisors with fully developed apices were selected. Endodontic treatment of samples was performed using 10K file to obtain patency than sequentially with a 25K file followed by rotary pro tapers till F2 with constant irrigation. The canal was dried and obturated with corresponding gutta-percha and sealer. A Peso reamer was employed to prepare post space. Based on canal disinfection regimes, samples were divided into five groups. Group 1 Riboflavin (RF)+17%EDTA, group 2 Rose bengal (RB) +17%EDTA, group 3 Curcumin CP +17%EDTA, group 4 Porfimer sodium, Photofrin (PS) +17%EDTA and group 5 2.25% NaOCl +17% EDTA (control). Following disinfection, the canal space of all specimens was dried followed by FRCP cementation. Specimens were placed on a Universal testing machine (UTM) for EBS. The type of bond failure was evaluated using a stereomicroscope. ANOVA and Tukey multiple comparison tests were used to compare means. RESULTS The highest EBS was shown by group 1 canal disinfected with riboflavin (RF) and 17% EDTA at all three levels. The lowest EBS was displayed in group 5 canal cleaned with 2.25% NaOCl and 17% EDTA. Intragroup assessment disclosed a decrease in EBS from cervical one-third to apical one-third in all experimental groups. Intergroup comparison revealed group 4 using PS and 17% EDTA and group 5 canal disinfected with 2.25% NaOCl and 17% EDTA at all three levels of root structure coronal, middle, and apical exhibited comparable EBS (p>0.05). CONCLUSION Root canal dentin treated with different PS (RF, RB, CP) has the potential to be used as canal disinfection as it demonstrates better EBS than the conventional disinfecting regime (2.25% NaOCl +17% EDTA). PS and 17% EDTA as a canal disinfectant need further investigation.
Collapse
|
26
|
Al-Saleh S, Albaqawi AH, Alrawi F, Tulbah HI, Al-Qahtani AS, Heer E, Nisar SS, Vohra F, Abduljabbar T. Effectiveness of synthetic and natural photosensitizers and different chemical disinfectants on the contaminated metal crown. Photodiagnosis Photodyn Ther 2021; 36:102601. [PMID: 34699981 DOI: 10.1016/j.pdpdt.2021.102601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 10/13/2021] [Accepted: 10/18/2021] [Indexed: 10/20/2022]
Affiliation(s)
- Samar Al-Saleh
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, PO Box 60169, Riyadh 11545, Saudi Arabia; Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia..
| | - Ahmed Heji Albaqawi
- Department of Restorative Dental Science, College of Dentistry, University of Ha'il, Ha'il, 55476, Saudi Arabia.
| | - Feras Alrawi
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, PO Box 60169, Riyadh 11545, Saudi Arabia; Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Huda I Tulbah
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia..
| | - Amal S Al-Qahtani
- Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia..
| | - Emal Heer
- Department of Pharmacology, Dr Ishrat Ul Ebad Khan Institute of Oral Health Sciences, Dow University of Health Sciences, Karachi, Pakistan
| | - Sidra Sadaf Nisar
- Department of Science of Dental Material, Dow International Dental College, Karachi, Pakistan
| | - Fahim Vohra
- Department of Prosthetic Dental Science, College of Dentistry, King Saud University; Research Chair for Biological Research in Dental Health, College of Dentistry, Riyadh 11545, Saudi Arabia.
| | - Tariq Abduljabbar
- Department of Prosthetic Dental Science, College of Dentistry, King Saud University; Research Chair for Biological Research in Dental Health, College of Dentistry, Riyadh 11545, Saudi Arabia.
| |
Collapse
|
27
|
Pourhajibagher M, Bahador A. Enhanced reduction of polymicrobial biofilms on the orthodontic brackets and enamel surface remineralization using zeolite-zinc oxide nanoparticles-based antimicrobial photodynamic therapy. BMC Microbiol 2021; 21:273. [PMID: 34620084 PMCID: PMC8499451 DOI: 10.1186/s12866-021-02324-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Accepted: 09/06/2021] [Indexed: 11/10/2022] Open
Abstract
The aim of this study was to evaluate the anti-biofilm and anti-metabolic activities of zeolite-zinc oxide nanoparticles (Zeo/ZnONPs)-based antimicrobial photodynamic therapy (aPDT) against pre-formed polymicrobial biofilms on the orthodontic brackets, as well as, assess the remineralization efficacy on polymicrobial biofilms induced enamel lesions. Following synthesis and characterization of Zeo/ZnONPs, cell cytotoxicity, hemolytic effect, and intracellular reactive oxygen species (ROS) production were determined. The anti-biofilm and anti-metabolic activities of aPDT using different concentrations of Zeo/ZnONPs were investigated. Microhardness tester and DIAGNOdent Pen were used to evaluate the changes of remineralization degree on the treated enamel slabs duration 1 and 3 months. No significant cytotoxicity and erythrocyte hemolysis were observed in treated cells with Zeo/ZnONPs. When irradiated, suggesting that the Zeo/ZnONPs were photoactivated, generating ROS and leading to reduce dose-dependently the cell viability and metabolic activity of polymicrobial biofilms. Also, the enamel surface microhardness value of exposed enamel showed a steady increase with the concentration of Zeo/ZnONPs. No statistically significant differences were shown between aPDT and sodium fluoride varnish as the control group. Overall, Zeo/ZnONPs-based aPDT with the greatest remineralization efficacy of enamel surface can be used as an anti-biofilm therapeutic method, which is involved with their potent ability to produce ROS.
Collapse
Affiliation(s)
- Maryam Pourhajibagher
- Dental Research Center, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Abbas Bahador
- Oral Microbiology Laboratory, Department of Microbiology, School of Medicine, Tehran University of Medical Sciences|, Tehran, Iran.
- Fellowship in Clinical Laboratory Sciences, BioHealth Lab, Tehran, Iran.
| |
Collapse
|
28
|
Parhi S, Pal S, Das SK, Ghosh P. Strategies toward development of antimicrobial biomaterials for dental healthcare applications. Biotechnol Bioeng 2021; 118:4590-4622. [PMID: 34599764 DOI: 10.1002/bit.27948] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/19/2021] [Accepted: 09/26/2021] [Indexed: 12/25/2022]
Abstract
Several approaches for elimination of oral pathogens are being explored at the present time since oral diseases remain prevalent affecting approximately 3.5 billion people worldwide. Need for antimicrobial biomaterials in dental healthcare include but is not restricted to designing resin composites and adhesives for prevention of dental caries. Constant efforts are also being made to develop antimicrobial strategies for clearance of endodontic space prior root canal treatment and for treatment of periimplantitis and periodontitis. This article discusses various conventional and nanotechnology-based strategies to achieve antimicrobial efficacy in dental biomaterials. Recent developments in the design and synthesis of antimicrobial peptides and antifouling zwitterionic polymers to effectively lessen the risks of antimicrobial drug resistance are also outlined in this review. Further, the role of contemporary strategies such as use of smart biomaterials, ionic solvent-based biomaterials and quorum quenchers incorporated biomaterials in the elimination of dental pathogens are described in detail. Lastly, we mentioned the approach of using polymers to print custom-made three-dimensional antibacterial dental products via additive manufacturing technologies. This review provides a critical perspective on the chemical, biomimetic, and engineering strategies intended for developing antimicrobial biomaterials that have the potential to substantially improve the dental health.
Collapse
Affiliation(s)
- Shivangi Parhi
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India
| | - Sreyasi Pal
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Sujoy K Das
- Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India.,Division of Infectious Diseases and Immunology, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Paulomi Ghosh
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India
| |
Collapse
|
29
|
Gonçalves MLL, Santos EM, Renno ACM, Horliana ACRT, Cruz MDA, Parisi JR, Prates RA, Leal-Rossi A, Fernandes KPS, Mesquita-Ferrari RA, Bussadori SK. Erythrosine as a photosensitizer for antimicrobial photodynamic therapy with blue light-emitting diodes - An in vitro study. Photodiagnosis Photodyn Ther 2021; 35:102445. [PMID: 34284146 DOI: 10.1016/j.pdpdt.2021.102445] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/06/2021] [Accepted: 07/12/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND This study aims to test the absorbance of a new composition of erythrosine, its pH, cell viability and potential as a photo sensitizer against Candida albicans when irratiaded with blue light emitting-diode (LED). METHODS For pH and absorbance tests, erythrosine was prepared at a concentration of 0.03/ml. The cells of the L929 strain were cultured and the alamarBlue® assay was performed on samples to assess cell viability. For the microbiological essay, the strain of Candida albicans ATCC 90028 was selected. Yeast suspensions were divided into the following groups: control without irradiation or photosensitizer (C), irradiated group without photosensitizer (L), photosensitizer group without irradiation (0), and groups that received photosensitizer and irradiation, called aPDT groups. RESULTS Erythrosine had no significant changes in pH and its absorbance was also consistent (≅400 nm). When it came to cell viability, on the first day, the group that was in contact with the dye and irradiated with the LED in minimun power was found to have the higher cell proliferation. On day 3, both irradiated groups (maximum and minimum) showed the highest cell proliferation. In the microbiological essay with C. albicans, aPDT groups started to show microbial reduction after 60 and 90 s of irradiation and when irradiated for 120 s, 6 microbial reduction logs were found. CONCLUSIONS The erythrosine in question is a PS, with pH stability, blue light absorbance, cell viability and efficacy against C. albicans. More studies with this PS should be encouraged in order to verify its performance in aPDT.
Collapse
Affiliation(s)
- Marcela Leticia Leal Gonçalves
- Postgraduation Program in Health and Environment, Universidade Metropolitana de Santos, Santos, SP, Brazil; Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil; Dentistry College, Universidade Metropolitana de Santos, Santos, SP, Brazil.
| | - Elaine Marcílio Santos
- Postgraduation Program in Health and Environment, Universidade Metropolitana de Santos, Santos, SP, Brazil; Dentistry College, Universidade Metropolitana de Santos, Santos, SP, Brazil.
| | - Ana Cláudia Muniz Renno
- Postgraduation Program in Bioproducts and Bioprocesses and Postgraduation Program in Health Sciences, Universidade Federal de São Paulo, Santos, SP, Brazil.
| | | | - Matheus de Almeida Cruz
- Postgraduation Program in Bioproducts and Bioprocesses and Postgraduation Program in Health Sciences, Universidade Federal de São Paulo, Santos, SP, Brazil.
| | - Julia Risso Parisi
- Physiotherapy, Universidade Metropolitana de Santos, Santos, SP, Brazil.
| | - Renato Araújo Prates
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil.
| | - Adriana Leal-Rossi
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil.
| | | | | | - Sandra Kalil Bussadori
- Post Graduation Program in Biophotonics Applied to Health Sciences, Universidade Nove de Julho, São Paulo, SP, Brazil; Dentistry College, Universidade Metropolitana de Santos, Santos, SP, Brazil.
| |
Collapse
|
30
|
Alhenaki AM, Alqarawi FK, Tanveer SA, Alshahrani FA, Alshahrani A, AlHamdan EM, Alzahrani KM, Aldahiyan N, Naseem M, Vohra F, Abduljabbar T. Disinfection of acrylic denture resin polymer with Rose Bengal, Methylene blue and Porphyrin derivative in photodynamic therapy. Photodiagnosis Photodyn Ther 2021; 35:102362. [PMID: 34062305 DOI: 10.1016/j.pdpdt.2021.102362] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 05/19/2021] [Accepted: 05/24/2021] [Indexed: 11/26/2022]
Abstract
AIM The study aimed to assess the effect of in-vitro chlorhexidine and antimicrobial photodynamic therapy (aPDT) disinfection protocols against acrylic resin specimens colonized with S. mutans, S. aureus, E. coli, and C. albicans. MATERIAL AND METHODS Reference strains of S. mutans, S. aureus, E. coli, and C. albicans were tested. Sixteen blocks of acrylic specimens were prepared by heat-cure acrylic resin and contaminated by in-vitro biofilm growth. Specimens in group 1, group 2 and group 3 were treated with Rose Bengal (RB), methylene blue (MB) 500 mg/L and porphyrin derivative (PD) 5 ml respectively, for the sensitization of biofilms. All photosensitizers (PS) were activated by LED at different wavelength. CHX was prepared in sterile distilled water and applied for 60 s. Each contaminated specimen was sprayed on all its surfaces with the aforementioned photosensitizers and control CHX. One-way analysis of variance (ANOVA) model was used to test the effect of the treatments and Tukey multiple comparison tests to compare means OF CFU/mL (log10) for exposed E. coli, C. albicans, S aureus, and S. mutans RESULTS: Specimens treated with 0.12% CHX (control) demonstrated a significant reduction in CFU/mL (log10) for exposed E. coli; 2.04±0.07 CFU/mL, C. albicans; 2.09±0.85 CFU/mL, S aureus; 3.04±0.11 CFU/mL, and S. mutans; 2.54±0.91 CFU/mL. The intragroup comparison revealed E.coli did not exhibit a decrease in reduction CFU/mL (log10) when acrylic resin irradiated with RB 5 µm. Whereas, CFU/mL (log10) values of S.aureus; 3.62±0.68 and S.mutans; 3.41±0.13 plummeted (p<0.05). Intergroup comparison showed E.coli values to display comparable reduction when disinfected with MB 500 mg/L and 0.12% CHX; 3.16±0.34 and 2.04±0.07 CFU/mL (log10) (p<0.05). CONCLUSION Photosensitizers (RB, MB, PD) are selective in reducing bacterial count on acrylic resin blocks. CHX was found to be effective against all bacteria E.coli, C.albicans, S.aureus, and S.mutans at a concentration of 0.12%.
Collapse
Affiliation(s)
- Aasem M Alhenaki
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
| | - Firas K Alqarawi
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
| | - Syeda A Tanveer
- Department of Oral Biology, College of Dentistry, Dow international Dental College. Karachi, Pakistan.
| | - Faris A Alshahrani
- Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia.
| | - Abdullah Alshahrani
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
| | - Eman M AlHamdan
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
| | - Khaled M Alzahrani
- Department of Prosthetic Dental sciences, College of Dentistry, Prince Sattam Bin AbdulAziz University, 11942 Alkharj Saudi Arabia.
| | - Nada Aldahiyan
- Post-Graduate Student. Department of Restorative Dental Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
| | - Mustafa Naseem
- Department of Community and Preventive Dental sciences, Dow International Dental College, Dow University of Health Sciences, Karachi, Pakistan.
| | - Fahim Vohra
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
| | - Tariq Abduljabbar
- Prosthetic Dental Science Department, College Of Dentistry, King Saud University Riyadh, Saudi Arabia.
| |
Collapse
|
31
|
Abstract
The healing power of light has attracted interest for thousands of years. Scientific discoveries and technological advancements in the field have eventually led to the emergence of photodynamic therapy, which soon became a promising approach in treating a broad range of diseases. Based on the interaction between light, molecular oxygen, and various photosensitizers, photodynamic therapy represents a non-invasive, non-toxic, repeatable procedure for tumor treatment, wound healing, and pathogens inactivation. However, classic photosensitizing compounds impose limitations on their clinical applications. Aiming to overcome these drawbacks, nanotechnology came as a solution for improving targeting efficiency, release control, and solubility of traditional photosensitizers. This paper proposes a comprehensive path, starting with the photodynamic therapy mechanism, evolution over the years, integration of nanotechnology, and ending with a detailed review of the most important applications of this therapeutic approach.
Collapse
|